lammert - 9:54 am on Mar 12, 2010 (gmt 0)
This plugin is available on github, which is a version control system. They offer projects in source code, not in installable packages AFAIK.
The procedure shouldn't be too difficult though. You should download the source files on the project page and then follow the instructions which have been written down in the Wiki page. The Wiki page describes the procedure for Ubuntu, but as Ubuntu and Debian are from the same Linux family, that shouldn't be a problem.